-Anything Simpsons. I have a complete master collection of Playmates Simpsons line from a few years back. Easily the coolest toys ever. Value is nonexistant except for a handful of figures that are difficult to find.
-Pallisades Muppets line. Nearly a master set but I'm missing one collectors club figure...I can't stand Gonzo and they put out one too many Gonzo figs. So I'm missing that fig and also the ultra rare Kermit and Piggy wedding set. It was a freebie giveaway to the guest at the wedding of one of Palisades VP's and thats the only way you could ever get it. And I'm not forking over $350+ for a figure(was selling at over $900 at one point). Still many of the exclusives were limited to 250-1000 figures and a few of the later items are very difficult to get. So lots of figures or sets that sell currently on ebay in the $50-300 range. Not that I'd ever sell, not to mention that I opened lots of stuff(though not the exclusives or variants).
-McFarlane Sportspicks...I love these and probably have 100 or more.
Price on these has gone up to where they are now an untenable $15 plus tax at TRU, but fortunately greed is not lost on the dealers at Frank and Sons and so many of them crack case after case looking for that big insert variant score. And they sell off the rest at $8-9 each with no tax. Thrilled to have somewhere local to buy my favorite players as even Dodgers and other hometown teams seem to have no markup.